05491+6248 STF 3115 (HD 38284)
05h 49m 04.64s +62° 48' 29.6" P.A. 337.00 sep 0.9 mag 6.55,7.51 Sp A4V dist. 122.7 pc (400.25 l.y.)
| Coord 2000 |
05491+6248 |
|
Discov num |
STF3115 |
|
Comp |
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Coord arcsec 2000 |
05 49 04.64 +62 48 29.6 |
|
| Date first |
1831 |
|
Date last |
2017 |
|
Obs |
84 |
|
| Pa first |
36 |
|
Pa last |
336.5 |
|
P.A. Now (θ) |
336.5° |
|
| Sep first |
1.7 |
|
Sep last |
0.85 |
|
Sep. Now (ρ) |
0.85" |
|
| Mag pri |
6.55 |
|
Mag sec |
7.51 |
|
delta mag (ΔM) |
0.96 |
|
Spectral class |
A4V (white) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
-021 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-002 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 38284 |
|
Constellation |
Camelopardalis |
|
SAO |
13618 |
|
HIP |
27472 |
|
| Tycho2 |
4098-02548-1 |
|
Gaia DR2 |
286605370983403904 |
|
HD |
38284 |
|
HR |
1976 |
|
| GC |
7236 |
|
ADS |
4376 |
|
BD |
BD+62 784 |
|
Distance |
122.7 |
|
| Distance ly |
400.25 |
|
ORBITAL ELEMENTS
| Period (P) | 976.83y | ± 11.61 |
Periastron (T) | 2131.6y | ± 9.62 |
Semi-major axis (a) | 1.35a | ± 0.012 |
| Eccentricity (e) | 0.338 | ± 0.055 |
Inclination (i) | 131.8° | ± 0.5 |
Longitude of periastron (ω) | 159.4° | ± 2.1 |
| Node (Ω) | 48.8° | ± 0.4 |
Notes | | |
Reference | Nov2007d | |
| Equinox | 2000 | |
Last observation | 2003 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
342.4 |
0.814 |
| 2001 |
341.8 |
0.810 |
| 2002 |
341.2 |
0.806 |
| 2003 |
340.5 |
0.802 |
| 2004 |
339.9 |
0.798 |
| 2005 |
339.2 |
0.794 |
| 2006 |
338.5 |
0.790 |
| 2007 |
337.8 |
0.786 |
| 2008 |
337.2 |
0.783 |
| 2009 |
336.5 |
0.779 |
| 2010 |
335.8 |
0.775 |
| 2011 |
335.1 |
0.771 |
| 2012 |
334.4 |
0.768 |
| 2013 |
333.6 |
0.764 |
| 2014 |
332.9 |
0.761 |
| 2015 |
332.2 |
0.758 |
| 2016 |
331.4 |
0.754 |
| 2017 |
330.7 |
0.751 |
| 2018 |
329.9 |
0.748 |
| 2019 |
329.2 |
0.745 |
| 2020 |
328.4 |
0.742 |
| 2021 |
327.7 |
0.739 |
| 2022 |
326.9 |
0.736 |
| 2023 |
326.1 |
0.733 |
| 2024 |
325.3 |
0.731 |
| 2025 |
324.5 |
0.728 |
| 2026 |
323.7 |
0.726 |
| 2027 |
322.9 |
0.723 |
| 2028 |
322.1 |
0.721 |
| 2029 |
321.3 |
0.719 |
| 2030 |
320.5 |
0.716 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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